Sand-valve for deep-well pumps.



S. W. CLARK.

SAND VALVE FOR DEEP WELL PUMPS,

APPLICATION FILED FEB. 25,1916.

Patented Jan. 16, 1917.

Witnesses Attorneys SETH WATT CLARK,

OF FINDLAY, OHIO.

SAND-VALVE FOR DEEP-WELL PUMPS.

Application filed February 25, 1916.

To all whom it may concern.-

Be it known that I, SETH W. CLARK, a citizen of the United States, residing at Findlay, in the county of Hancock and State of Ohio, have invented a new and useful Sand-Valve for Deep-VVell Pumps, of which the following is a specification. I

The present invention relates generally to deep well pumps, and aims to provide novel and improved means for preventing the sand and grit within the tubing above the barrel from settling upon the valves, which when it occurs subjects the parts to unnecessary wear, and also impairs the utility of the pump, as is well known.

The present invention resides in the provision of a special valve at the upper end of the pump barrel, permitting the upward flow of the liquid, but preventing the settling of sand, grit or other extraneous matter from above said barrel into the same, thus protecting the piston, valves and other parts from unnecessary wear, and also facilitating the pumping operation.

Oil wells, and other deep wells, are usually pumped at certain intervals, such as once a day, or the like, and during the intervals that the pumps are idle, sand, grit and other foreign matter ordinarily settles upon v the working parts, thereby subjecting the same to unnecessary wear, which it is the object of the invention to overcome by simple, inexpensive, and yet efficacious means.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a longitudinal vertical section of the device. Fig. 2 is'a cross section on the line 2-2 of Fig. 1.

In carrying out the invention, there is provided a guide sleeve 1 having its exterior surface or periphery tapered from its upper to its lower end, in order that said sleeve can be driven wedgedly into the upper end of the pump barrel 2, to fit tightly therein. The sleeve 1 is provided at its upper end Specification of Letters Patent.

Patented J an. 16, 1917.

Serial No. 80,482.

with a countersunk valve seat 3 at the upper end of the bore a of the sleeve which is of uniform diameter throughout, and within which bore is slidable vertically a tubular member or shank 5 having the enlarged valve head 6 at its upper end. Said valve head 6 is provided with an annular bevel 7 to seat upon the seat 3, by a downward movement, and the head 6 has an upstanding extension or boss 8 provided with a bore 9 of smaller diameter than the bore of the tubular shank 5. The piston or plunger rod 10 is slidable through the bore 9 and is spaced from the walls of the shank 5. The shank 5 is provided adjacent the valve head 6 with an annular series of apertures 11 'which are normally within the sleeve 1 to be closed thereby. A ring or nut 12 is threaded or otherwise secured upon the lower end of the shank 5, and is normally spaced below the lower end of the sleeve 1, and serves to limit the upward movement of the shank 5 and its valve head 6 when the column of liquid is forced upwardly.

In operation, when the column of liquid is lifted, it raises the valve head 6 and its tubular shank 5, so that the apertures 11 are brought above the upper end of the sleeve 1, the valve head being also unseated, and the upward movement of the shank 5 being limited by the nut or stop 12 striking the lower end of the sleeve 1. The liquid can flow upwardly through the shank 5, and apertures 11 to pass upwardly out of the barrel 2 without interference. Thus, the valve does not interfere with the ordinary working of the pump, but when the operation of the pump is stopped, the valve head 6 will seat upon the seat 8, the shank 5 moving downwardly so that its apertures 11 are again brought within the sleeve 1 to be closed thereby. Thus, sand, grit and other extraneous matter above the valve head 6 cannot settle downwardly into the barrel 2, and this protects the parts within and below the barrel. A double assurance against the settling of sand and foreign matter is provided, since the valve 'head in seating upon the seat 8 will provide primary means for preventing the downward movement of the sand, and furthermore, the apertures 11 in being within and closed by the sleeve 1 will provide secondary means for this same result.

The present device is extremely simple,

and can be readily installed, but it is nevertheless thoroughly eflicient and practical for its intended purposes.

Having thus described the invention,what is claimed as new is:

l. A device of the character described comprising a sleeve to fit tightly in the up per end of a pump barrel and having a valve seat at its upper end, a tubular shank slidable snugly within said sleeve and having an enlarged valve head at its upper end, said valve head being seatable upon the valve seat, said shank having an opening spaced below said head to move below the valve seat when said head is seated and to move above said valve seat when the valve head is raised, said head having a bore of smaller diameter than the bore of the shank for the passage of a piston rod therethrough, and a rin engaged upon the lower end of the shank below the sleeve and adapted to contact with the lower end thereof for limiting the upward movement of the shank.

2. A device of the character described comprising a sleeve tapered exteriorly to fit Wedgedly in the upper end of a pump barrel and having a countersunk valve seat at the upper end of its bore, a tubular shank slidable snugly within said bore and having an enlarged valve head at its upper end, said valve head having an annular bevel seatable upon said seat, said shank having an open ing below said head to move above said seat, and a ring threaded upon the lower end of said shank below said sleeve and adapted to contact with the lower end of said sleeve for limiting the upward movement of the shank, said head having a bore of smaller diameter than the bore of said shank for the passage of a piston rod therethrough.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

SETH l/VATT CLARK.

Witnesses FRANK PERRY, JOHN Z. REARDON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01' Patents, Washington, D. 0. 

